Hello guys, welcome back to my blog. In this article, I will discuss the difference between LIN, CAN, MOST, and FlexRay in applications, physical layer, data rate, message transmission, etc.
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Difference Between LIN, CAN, MOST, FlexRay
- LIN stands for Local Interconnect Network
- CAN stands for Controller Area Network
- MOST stands for Media Oriented System Transport
- FlexRay
01. Application
- The LIN protocol is used in a low-level communication system. It may be used to make a connection between sensors and controllers. For example: In the body of the vehicle.
- CAN is used in soft real-time systems. For example: In engines, power trains, chassis, battery management systems, etc.
- FlexRay is used in a hard real-time system. For example: In power trains, chassis.
- MOST are used in media-related applications and control in automotive. For example: In multimedia, telematics, etc.
02. Architecture
- LIN has a single master and typically 2 to 10 slaves.
- CAN has a multi-master and typically 10 to 40 nodes.
- FlexRay has a multi-master and up to 64 nodes.
- MOST also have multi-master and up to 64 nodes.
03. Bus Access
Bus it is a communication system that is responsible for data transfer.
- LIN has polling bus access
- CAN has CSMA/CA bus access
- FlexRay has TDMA/FTDMA bus access
- MOST have TDM CSMA/CS bus access
04. Topology
Topology means it is an arrangement made to connect devices.
- LIN has a bus topology
- CAN also have bus topology
- FlexRay has BUS/Star topology
- MOST have a ring/star topology
05. Message Transmission
- In LIN, message transmission is synchronous.
- In CAN, message transmission is asynchronous.
- In FlexRay, message transmission is synchronous and asynchronous.
- In MOST also, message transmission is synchronous and asynchronous.
06. Data Rate
- In LIN, the data rate is 20 Kbps.
- In CAN, the data rate is 1 Mbps.
- In FlexRay, the data rate is 10 Mbps.
- In MOST, the data rate is 24 Mbps.
07. Data Bytes Per Second
- In LIN, the data bytes per second is 0 to 8.
- In CAN, the data bytes per second is 0 to 8.
- In FlexRay, the data bytes per second is 0 to 254.
- In MOST, the data bytes per second is 0 to 60.
08. Physical Layer
- An electrical single wire is used in the LIN protocol.
- The electrical dual wire is used in CAN protocol.
- Dual wire – optical or electrical wire is used in FlexRay.
- The optical fiber cable is used in MOST.
These are the difference between LIN, CAN, FlexRay, and MOST. I hope this article may help you all a lot. Thank you for reading.
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